Lenovo 10051 Manuel D’Utilisation

41

User Guide

2.  Move any interfering devices away from the computer.
3.  If the problem persists, consult with Lenovo Service.

Problem: No sound from integrated speakers.

Troubleshooting and problem resolution:
•  Adjust the windows volume control — Double-click the speaker icon in the

lower-right corner of your screen. Ensure that the volume is turned up and that 
the sound is not muted. Adjust the volume, bass, or treble controls to eliminate 
distortion.

•  Reinstall the audio driver.
•  Disconnect headphones from the headphone connector — Sound from the

speakers is automatically disabled when headphones are connected to the 
computer’s side-panel headphone connector.

Problem: No sound from headphones.

Troubleshooting and problem resolution:
•  Check the headphone cable connection — Ensure that the headphone cable is

securely inserted into the headphone connector.

•  Adjust the windows volume control — Click or double-click the speaker icon in

the lower-right corner of your screen. Ensure that the volume is turned up and 
that the sound is not muted.

Problem: You are unable exit a running program normally.

Troubleshooting and problem resolution:
1.  Open the Task Manager window by pressing Ctrl, Alt and Delete at the same 

time.

2.  Select the Application tab, select the problem program, and then click the End 

Task button.